What is CVE-2026-109662?

CVE-2026-109662 is a medium-severity vulnerability in Frappe Erpnext, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-12.

How severe is CVE-2026-109662?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Frappe Erpnext

CVE-2026-109662

Frappe ERPNext before 15.112.0 and 16.x before 16.23.0 contains a stored cross-site scripting vulnerability in a public portal form that accepts unauthenticated submissions and stores content later rendered with insufficient neutralisation. Unauthenticated attackers can submit crafted markup that executes in the browser sessions of staff who review the stored record.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-12 · last modified 2026-10-12.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Frappe Erpnext

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/frappe/erpnext/security/advisories/GHSA-4rfh-2hfg-9m7w (vendor-advisory)
www.vulncheck.com/advisories/frappe-erpnext-before-15.112.0-stored-xss-via-publ… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109662?: CVE-2026-109662 is a medium-severity vulnerability in Frappe Erpnext, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-12.
How severe is CVE-2026-109662?: Medium severity. CVSS v3 base score is 6.1 out of 10.